LivnDream Report post Posted December 14, 2021 i have 2 Singer 531b-8bl machines , one is older than the other and doesn't have the bobbin case opener parts on it . Did some of these machines not have that or am i missing parts? Quote Share this post Link to post Share on other sites
CowboyBob Report post Posted December 14, 2021 Yes,that happened because they changed suppliers. Quote Share this post Link to post Share on other sites
LivnDream Report post Posted December 15, 2021 Are there alternate adjustment without bobin case opener. ? Quote Share this post Link to post Share on other sites
